(Figure 1, page 726) Thorium 230 excess values as a function of distance inside layers of a manganese nodule from DOMES Site B, Pacific Ocean, supplement to: Kadko, David; Burckle, Lloyd H (1980): Manganese nodule growth rates determined by fossil diatom dating. Nature, 287(5784), 725-726


We report here that a manganese nodule from the Central Pacific manganese nodule province has been dated by fossil diatoms found in mud scraped from near the nodule's centre. The nodule was taken at DOMES Site B from Core B55-56 at 11°50.3'N and 137°28.2'W in a water depth of 4,892 m. It was resting on the sediment surface, with about 1.5 cm of the nodule bottom (of a total nodule height of 4.2 cm) buried in the mud. The top surface of the nodule was covered with a smooth manganese coating, but the bottom had a very rough, crusty texture. It was found that recent mud had leaked in through cracks in the nodule bottom, but that there were no pre-Pleistocene diatoms in this material. The date obtained was compared with the growth rate determined by the 230Th excess method and found to be in reasonable agreement. This study adds to the work of Harada1,2 on the biostratigraphy (mainly coccoliths) of manganese nodules.

DOI http://dx.doi.org/doi:10.1594/PANGAEA.881434
Metadata Access http://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite3&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.881434
Creator Burckle, Lloyd H;Kadko, David
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1980
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (12N,137W)
Temporal Point 1975-11-09T11:59:59Z